The World Health Organization on called on European nations Wednesday to step up vaccinations against the highly contagious measles virus after an outbreak of over 22,000 cases across the continent since 2014. “We must collectively respond, without further delay, to close immunisation gaps,” said ...

An 18-month-old boy who was not vaccinated against measles has died of the virus in Berlin, health officials said on Monday, adding they would try to boost vaccination rates and increase checks on children’s status. The German capital has seen about 600 cases of ...

Two leaders in the U.S. House of Representatives said on Tuesday all children should be vaccinated, joining a debate that has become a national political flashpoint, as a measles outbreak rekindles a discussion on safety and the right of parents to forgo inoculation of ...

The leading U.S. pediatrician group on Friday urged parents, schools and communities to vaccinate children against measles in the face of an outbreak that began at Disneyland in California in December and has spread to more than 50 people. The American Academy of Pediatrics ...

This year’s flu season could be especially severe, U.S. health authorities warned Thursday, adding that genetic mutations mean the vaccine won’t be as effective against some of the most prevalent flu strains. So far this season, most flu patients in the United States have ...